CUSTIS | 966 followers on LinkedIn. Established in 1996 CUSTIS Group develops application software to solve complex and nonstandard problems. CUSTIS provides services in the area of design, development and careful integration of large-scale analytical-and-accounting information systems for companies with unique and fast-moving business processes. Currently CUSTIS is carrying out about 40 ongoing projects (including ones for the largest banks), each of them led by professional teams.